Trichinellosis in Vietnam

Trichinellosis is a zoonotic parasitic disease with a worldwide distribution. The aim of this work was to describe the epidemiological and clinical data of five outbreaks of trichinellosis, which affected ethnic minorities living in remote mountainous areas of northwestern Vietnam from 1970 to 2012....

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Bibliographic Details
Published in:The American journal of tropical medicine and hygiene 2015-06, Vol.92 (6), p.1265-1270
Main Authors: Van De, Nguyen, Thi Nga, Vu, Dorny, Pierre, Vu Trung, Nguyen, Ngoc Minh, Pham, Trung Dung, Do, Pozio, Edoardo
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Factors
Animals
Child
Child, Preschool
Disease Outbreaks
Female
Humans
Male
Middle Aged
Sex Factors
Swine - parasitology
Swine Diseases - epidemiology
Swine Diseases - parasitology
Trichinella spiralis
Trichinellosis - epidemiology
Trichinellosis - etiology
Trichinellosis - pathology
Vietnam - epidemiology
Young Adult
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Summary:Trichinellosis is a zoonotic parasitic disease with a worldwide distribution. The aim of this work was to describe the epidemiological and clinical data of five outbreaks of trichinellosis, which affected ethnic minorities living in remote mountainous areas of northwestern Vietnam from 1970 to 2012. Trichinellosis was diagnosed in 126 patients, of which 11 (8.7%) were hospitalized and 8 (6.3%) died. All infected people had consumed raw pork from backyard and roaming pigs or wild boar at wedding, funeral, or New Year parties. The short incubation period (average of 9.5 days), the severity of the symptoms, which were characterized by diarrhea, abdominal pain, fever, myalgia, edema, weight loss, itch, and lisping, and the high mortality, suggest that patients had ingested a high number of larvae. The larval burden in pigs examined in one of the outbreaks ranged from 70 to 879 larvae/g. These larvae and those collected from a muscle biopsy taken from a patient from the 2012 outbreak were identified as Trichinella spiralis. Data presented in this work show that the northern regions of Vietnam are endemic areas for Trichinella infections in domestic pigs and humans.
ISSN:0002-9637
1476-1645
DOI:10.4269/ajtmh.14-0570